Oscillating fan-motor.



o.. AALBORG. OSCILLATING FAN MOTOR.

'APPLICATION FILED DEC-26| 19H.

1,241,599. Patented 00u 2,1917.

fn il INVEN T017 W 4Arron/ler.

UNITED sTATEs PATENT oEEIoE.

AAL'RjoRG, or WrizxmsRURe, PENNSYLVANIA, AssrciNoR To wRs'rrNG- no UsE ELECTRIC AND MANUFACTURING COMPANY, A CORPORATION or PENN- s'YLvANIA To all lwhom z't may concern.' v Be it known that L-Cmus'rrAN Re,

ay citizen of the VUnited States, .and a resi-.

dent of Wilkinsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and ,useful Improvement in Oscillating Fan-Motors, of which the fol- A lowing is a specification.

` acter, and to provide ,an adequate and effective means for readily rendering the oscillating mechanism inoperative and for locking the rotatableportion of' the device in any desired positio l Another object of my invention is to provide a dust-proof protective casing which may be detachably secured to the driving motor for the urpose of inclosing all movable parts of t 1e. oscillating mechanism.

In the accompanying drawings, Figure 1 is a view,` partially fin side elevation and partially 1n section, of a device constructed o 1n accordance with my invention. Fig. is plan view, partially in section, of a port1on of the device shown in Fig. 1, and Fig. 3 `is a bottom plan view of a operating mechanism.

drawings in-d detail, a

portion of the Referring to the motor l of any well known construction, is pivotally mounted on a supporting base 2 by means of an adjustable hlnge or coupling 3, in such manner that the device is adapted for either desk or wall mounting and for any desired operating position.

The armature shaft 4 of motor 1 is mounted at its respective ends in suitable bearing members 5 and 6, one end of the shaft 4 being provided with a plurality of fan blades 7 which are inclose and protected from contact with exterior objects by means of a vsuitable cage orv guard 8. The opposite end 9 of the shaft 4 is provided with 'a tonguey portion 10 which is adapted to coperate with a suitable slot 11 in one end .of a worm member 12 which is co-axially disposed wlth Specification o! Letters Patent.

vits gearing.

Patented oct. 2, 1917.

'l Application ala December 2e, 1911. serial No. 667,921.

respect to the armature shaft 4 and is mounted 1n a bearlng sleeve 6. A worm wheel 13 Aengages the worm vmember 12 in a well 2 abovethe coupling 3 by means of a connecting rod 18, one end of which is eccentrically pinned to the gear wheel 16 by a pin 19, while the other end thereof is attached to the aforesaid portion 17 of the supportmg base 2 by a pin 20. All of the component parts of the operating mechanism hereinbefore described yare effectively inclosed and protected from external injury by a dust-proof casing 21, so that no moving parts are exposed.

The casing 21 comprises .the bearing sleeve 6 that terminates in an annular iange 30. The flange 30 is provided with a reduced portion 31 that is received in anl opening 32 provided in the rear bearing bracket 33 ofthe motor 1. The casing 21 further comprises a cylindrical portion 34 that is disposed substantially at right angles to the sleeve 6, within which the shaft 14 is located. The portion 34 terminates in a hollow base portion 35 within which is located the connecting rod 18 and the gear members 15 and 16. The base portion 35 is provided, at its end, with an opening 36 through which projects a portion 373L of a 'pivot pin 37, the upper end of which portion 35a constitute a sort of saddle to receive and support the motor casing 38. xA cover 39 is secured to the base portion 35, thereby entirely inclosin the connecting rod 18 and rom the foregoing, it is apparent thatthe component parts ofthe oscillating mechanism may be completely assembled within the casing 21 and then applied, as a unit, to any fan motor, the shaft of which has been previously provided with a tongue portion, such as shown at 10. When it is desired to remove or to replace the. motor, it is only necessary to remove the means that secure the portion 35 to the motor casing 38 and then withdraw the motor shaft 4 from the worm 12.

The particular operating mechanism set forth forms no material part of my present invention, except as it serves to complete a useful combination of elements by means of which the rotational movement of the armature shaft 4 is transmitted to the gear wheel 16 vand an oscillatory movement of the fan is thereby obtained, in a well known manner.

Referring now particularly to Fig. 2, the outer end of the worm member 12 is provided with a transverse slot 22 having inclined sides 23, and said slot is adapted to receive a frusto-conical portion '24 which forms an integral part of a pin or rod 25, the outer end 26 thereof being riveted or otherwise suitably secured to an adjustable capr member 27. The cap member 27 (is screw-threaded upon a neck portion 28 of a bushing 29, which is rigidly secured to the outer end of the bearing member 6 in a suit able manner.

Assuming that the fan motor is in operation and that the various parts thereof occupy the positions shown in the drawings, the oscillating mechanism maybe rendered inoperative and the fan motor adjusted and locked in any desired position merely by unscreiving the cap member 27, thereby drawing the worm member l2 in a longitudinal direction out of engagement with the tongue portion 10 at the end of the motor shaft 4. Thus, the oscillating mechanism is disengaged from the shaft l of the y driving motor 1 and the fan continues to operate in a fixed position relative to its supporting base. Furthermore, the fan 1s held or locked in this position by reason of the coperative engagementof the worm member l2 and worm wheel 13, it being well understood by those skilled in the art, that this class of gearing cannot be operated in a reverse direction.

ln order to resume the oscillatory movement, the cap member 27 is screwed upon the bushing Q9 until the tongue and slot connection between the motor shaft Il and the worm member l2 is again effected.

Obviously, various other devices for rendering the oscillating mechanism ineffective and for locking the fan motor in any de* sired position may be employed, and many nio'diicationsinl the structural details and in the arrangement and location of parts may be effected without `departing from the spirit and scope of my invention.

naartoe I claim as my invention: J

l. ln a revoluble motor-drivenl fan, the combination with an armature shaft and operating means normally coupled thereto for effecting an oscillatory movement of said fan, of means for uncoupling said 3. lin a revoluble motor-driven fan` the combination with an armature shaft, a worin member normally coupled to the end of said shaft and mechanical operating means coperating with saidworm member for impartingan oscillatory movement t0 said fan, of manually operated means asso ciated with said worm member for uncoupling said member from said shaft and locking the said fan in position.

4. In a revoluble motor-driven fan, the combination with an armature shaft and mechanical means normally coupled thereto for effecting an oscillatory movement of said fan, of means for uncoupling said mechanical means from said shaft and means, including a part of the aforesaid means, for restraining further oscillatory movement of said fan when the said parts are uncoupled. l

In a revol-uble motor-driven fan, the combination with a rotatable armature shaft,I a worm member having a tongue and slot connection with the end of said shaft` and mechanical means associated with said worm member for imparting an oscillatory movement to said fan, of relatively stationary means having a loose connection to said worm member for effecting a longitudinal movement thereof, whereby said member is disengaged from said shaft.

6. In a revoluble motor-driven fan, the combination with an armature shaft and mechanical means' coperating therewith for effecting an oscillatory movement of said fan, of means for rendering said mechanical means inoperative and locking` said fan in position.

7. ln a revoluble motor-driven fan, the combination with an armature shaft and mechanical means normally in engagement therewith for effecting an oscillatory move- `ment of said fan, of means for disengaging 8. In a revoluble motor driven fan, the combination with an electric motor having a rotatable shaft, a Worm detachably secured to an end of said shaft and having a recess in the free end thereof, and a mechanism operatively connected to said Worm foroscillatin vsaid fan, of a member disposed coaxialIy Withsaid Worm and having one end disposed Within said recess, and a manually adjustable cap securedI to the other end of said member and adapted to disconnect said worm and said shaft.

9. In a revoluble motor-driven fan, th combination with a supporting base, an elec tric motor pivotally mounted thereon and having a rotatable armature shaft, a Worm loosely coupled to an end of said shaft, a

worm-wheel driven thereby and mounted on :Ln-auxiliary shaft, a driving-rod eccentrically. connected at one end to said auxiliary shaft and secured at the other end to said supporting base for effecting an oscillatory movement of said fan upon said base, of a casing foi-,supporting said gearing and said auxiliary shaft and for inclosing said driving rod, the said casing being detachably secured. to Said motor whereby said oscillating mechanism maybe removed from said motor as a unit.

10. In a revoluble motor-driven fan, the combination with a supporting base, an elec-- tric motor pivotally mounted thereon and having a rotatable armature shaft, a worm loosely coupled to an end of said shaft, a Worm-Wheel driven thereby and mounted on an auxiliary shaft, a driving-rod eccentrically connected at one end to said auxiliary shaft and secured at the other end to said supporting base forefl'ecting an oscillatory movement of said fan upon ,said base, of a casingvdetachably secured to said motor for supporting said gearing and said auxiliary shaft and for inclosing said driving rod.

11. In a revoluble motorldriven fan, the

rcombination with a supporting base, an electric motor pivotally mounted thereon and having a rotatable armature shaft, and' mechanical means embodying reduction gearing loosely-coupled to said shaft, an auxiliary shaft driven thereby and al drivin rod connected between said shaft and sai supporting base for eecting an oscillatory movement of said fan upon said base, of a protecting casing detachably secured to said motor for inclosing all movable parts of said mechanicalv means.

12. In a revoluble motor-driven fan, the combination with a supporting base, an electric motor pivotally mounted thereon and having a rotatable armature shaft, a Worm loosely coupled to an end of said shaft, a Worm wheel driven thereby and mounted on an auxiliary shaft, a driving-rod eccentrically connected at lone end to said auxiliary shaft and secured at the other.end to said supporting base for effecting an oscillatory movement of said fan upon said base, of a casing for inclosing and supporting said gearing, said auxiliary shaft and said driving rod, whereby said oscillating mechanism may be applied to said motor as a unit.

13. In a revoluble motorsdriven fan, the combination with a su} portin,g rl base, an elec tric motor pivotally mounted thereon and having a rotatable armature shaft, a 'Worm loosely coupled to an end of said shaft, z. worm 'Wheel driven thereby and mounted on an auxilialy shaft, a driving-rod eccentrically connected at one end to said auailiary shaft and secured at the other end to supporting base for effecting an oscillatory' movement of said fan uponsaid base, of casing secured to said motor and serving to inclose' and support said gearing, said nuxit iary shaft and said driving rod.

14. In a rovoluble motor-driven rau, tbe combination with a supporting base, an oise-- tric motor pivotally mounted thereon and having a rotatable armature shaft, and mcchanical means embodying reduction gearing 'i loosely coupled to said shaft, an auxiliary yshaft driven thereby and a driving rod con-- nected between said shaft and said support ing base ,for eiiectmg an oscillatory movement'of said fan upon said base, of a pro tecting casing secured to said motor and serving to inclosc and support all movable' parts of said mechanical means.

In testimony whereof, I have hereunto subscribed my name this 12th day of Dec.,

CHRISTIAN AALBURG.

iVitnesses WILLrAM Sor-MAKE, B.` B. HINES. 

